Building-block mold



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Patented Mar. 14, 1922.

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INVENTOR '1. BY w? ATTORNEY d il QW@ C. EfKING BUlLDlNG BLOCK MOLD.

APPLICATION FILED APR.2B,1920

1 ,409,3OC). VPatenoe Mar. 14, 1922.

2 SHEETS-SHEET 2.

, 4 TTORNE Y CLARENCE E. KING, F SALT LAKE CITY, UTAH.

BUILDING-BLOCK MOLD.

To all whom 'it may concer/rt.'

Be it. known that I, CLARENCE' E. KING, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State ot Utah, have invented certain new and useful Improvements in Building-Block Molds,- or" which the following is a specification'.

lily invention relates to forms for molding blocks of concrete, fire-clay or other plastic quickly setting material, and has for its object to provide an economical'form for making building' blocks vlor straight wall, and vone, with corners, windows, doors and header runs.

These objects I accomplish with the device illustrated in the accompanying drawings in which similar letters and numerals of reference' indicate'like parts throughout the several figures and as described in the specification forming a part of this application and pointed out in the appended claims.

In the drawings in which I have shown a substantial embodiment of my invention, Figure 1 is a plan of the form for molding a plurality 'of blocks at one setting, and in which I have shown some ofthe different individual forms which may be used in my apparatus to mold the different shaped blocks requiredV in .constructing buildings. Figure 2 is an end elevation of .the block which may be molded in section A of Figure 1. Figure 3 is a plan view of the same block. Figure 4 is an elevation of the other end of the same block, while Figurefis a side elevation of the same block. Figures 6, 7 and 8 are plan, end elevation and side elevation, respectively, of a headerv block which may be molded in sectionC of the form shown in Figure 1. Figures 9', 10, 11 and 12 are end elevation, plan, opposite end elevation and side elevations respectively, of a block which maybe molded in section D of the form shown in Figure 1. Figures 13 and 14 are side and end elevation respectively, of the core used in the'mold in sections A and B. Figures 15 and 16 are side and end elevations respectively, of the core used in section B. Figures 17 and 18 are side and end elevation respectively of the core used in section C. Figure 19 is an edge and side elevation respectively of the partition block used between sections A and B.V

Figure 20 is a side and end elevation and Specification of Letters Patent. Patented l\{a.1",14, 1922. Appnatmn ined April 2s, 1920. seriai Ng. 377,382.

used in sections C and Eto form the'openings shown in Figures G and 10. Figure 21 is a side elevation and edgeview otono of the partition blocks used between sections C Vand D. Figure 22 is a side and edge view ot ythe metal plate used contiguously'with Y l the partition blocks to give the block a tinished face. Figure 23 is a side elevation and edge viewV of the metal plate used to give the Vside of the blocks a finished face. Figure 24 is in a vertical transverse section on line 25 of Figure 1;

'My apparatus is constructed o'fdimension lumber with a closed bottoinl, to the edges or" which are nailed or secured in any suitY Y The side pieces able way the guide strips 2.

3 are placed but not nailedl inthe angled cornerof 1 and 2, yand each has the vertical height required in the vthickness of the blocks. The end pieces lare held in place by pins 5 which are secured in `thehottom1 and 'sides 3, and which engage in'. holes in Y the edges of said end pieces.V The upperedges of the form are held in position by the' cross ties 6. The length of the blocks are determined by. the cores 7, 8-or- 9, ditferent views of which are shown in Figures 13, 15 and 18. The partition members 10 and 11 are used to separate one blockfrom the other, and except on the end, header and longitudinally disposed openings y19 formed 1 by the cores in one side face of all blocks.

The cores 7, 8 and 9 are to save material;

to make. the block lighter; to form a large the wall in.' which they are used, andthe core used in the forms Works automatically with the partition in setting up the form ready to lill, so that no measuring, nailing or spacing is required, as the cores 7, 8 'and' 9 continuous airspace around the buildingv in and the partitions 10`and 11 hold each other in place and the blocks used will be the'same length as the core used. The fillin blocks 12 when used in sections A, B and form a hole in one end of the block which, when the block is laid in the Wall, makes `a vertical air space, continuously through the vvvall in Which they are laid, and they form va convenient hand-hold for the bricklayer who lays them, allowing him to place the block contiguous the other one without mashing his hand, and it also leaves a convenient place to knock the core ,out of the block when stripping or removingit Jrom the forms. The partitions may vary in size and in proportion to the block and be made of either wood, sheet or solid metal. The pieces of sheet metal 20 and 2l are cut the size ot the end and side face, respectively, ot the block, and are shown in Figures 23 and 24 with the edges cutat an angle, and serve the purpose of leaving good edges and a smooth surface on the bleek cast, and

.where a colored facing is desired, the facing material may be spread on the longer side of the sheet metal and placed inthe face ot the forms before-the body otgthe block is poured, so that when the form is iilled the block withfacing as desired is made in the same cast.

My forms are intended to be used in cast ing lbuilding blocks for foundations, outside walls, or inside partition walls, com* Vposed of concrete, brick or hre-clay, terra cotta, or any cement or plastic material. While the form shown and illustrated in the accompanying drawings, indicates but one size block to be cast, itis intended, by using different dimension lumber Afor the forms, to make any size block or brick desired, with any size core-opening desired. The cores may be made of either wood or metal, or of one piece or huilt up oi" two or more pieces, as convenience and economy may prove best. The shape may also vary as here shown, with the core larger at the bottom than at the top so that it can easily be stripped or removed from the block after the concreteis cast and set. A different length block may be cast by using a different length core. As different strength blocks will he required for differenty purposes, the

size of the cores', 8 and 9 in proportion to tion of a bottom; guide strips fastened on the edges of said bottom; side pieces resting on said bottom and contiguous saidl guide strips, to form a channel; end pieces in said channel held in place by vpins proyeeting trom said bottom and side pieces; spaced apart core blocks longitudinally disposed in said channel; partition blocks between said cores, with illing blocks to form recesses in the block case in said mold.

2. In a mold for building blocks the coin-V bination with a bottom; guide' strips and side pieces; end pieces detachably held in. the channel formed by said ybottoni and side pieces; spaced apart cores longitudinally disposed in said channel; partition inem bers placed transversely in said `channel and between said cores; filling blocks resting on said cores and vertically of the height oi the upper edges of said side pieces; and metal sheets adapted for use adjacent the ends and sides of the individual block mold.

8. A mold forbuilding blocks comprising a channel formed with a bottom and detachable sides and ends; cross'bars to hold said sides in spaced relation to each other; semicylindrical cores longitudinally disposed in said channel; partition members between said cores and filling bloc-ks on said cores to form recesses in air recesses inthe blocks which are to be molded in said form.

In testimony whereof I have aiiixed my signature.

cLiiRiiNcnE. inne.- 

